I could easily demonstrate to you that Y2K would be a problem were you to ignore it. It also came with a hard deadline. You could dick around saying, "2% of computer scientists don't think Y2K is real", but come January 1, 2000, you could have been cleaning up a disaster while the rest of the world went on about their day. The disaster would be localized, so no one would care even if your business went under as a result. But you could still fix your code after reality set in, it would just cost you a lot both in expense to fix and lost business.

In contrast to climate change, where we're still arguing about the details. We don't have a hard deadline, and even if we did, it would occur (most likely) after we're all dead. So we get to kick the can down the road a little longer. Should disaster actually strike, I don't think we get the opportunity to do the equivalent of putting four digit years after the fact.

So not a direct comparison, IOW.